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Digital projectors are equipments of recent technology. These are widely used to convert image data from the pc onto a screen via lens system. Digital projectors provide visualization of web data which is actually saved in a personal computer for presentation. These projectors enable the viewers to look at moving images from the DVD, digital versatile disc player. Advertisers or sellers likewise use these projectors to give illustration showing products to a large number of customers. It can easily convert written documents onto an interactive whiteboard.
Digital projectors play an important role within the formation of home theater systems. These projectors use resolution of SVGA standard i.e. 800? 600 pixels in expensive devices. Cost of digital projector depends on its resolution along with its brightness. 000 to 4,000 ANSI lumens, if you’re going to use it in large rooms or big conference halls its brightness ought to be from 1.
First, digital projectors, Eidophor projectors were introduced in 1950. Eidopher projectors used an oily surface in a rotating disk with light shining through it and employed an electron beam to disrupt oil in the specific manner. Eidophor projectors were unable to produce colors. Nowadays there are various good quality designs of digital projectors can be purchased in market so Eidopher projectors are less frequent.
Following four technologies are being used in digital projectors:
LCD projectors using LCD light gates
Texas Instruments’ DLP technology
Eidophor oil-film projectors (obsolete)
Currently LCD projectors use Texas Instruments’ DLP technology whereas the top intensity CRT devices are compatible with enduring installations. Entire working of cathode ray tube digital projectors is a lot like CRT television set. These projectors could be configured with one RGB color tube which has three colors blue, green and red with a single lens, one black & white tube using a rotating color wheel or three RGB color tubes with three lenses. Projectors having cathode ray tubes are generally bulky thats why these represent the best projectors for fixed installations.
LCD digital projectors are lighter and portable enough in comparison to CRT and can be shifted from one location to another. These are generally greatly available and popular in different shapes and forms. CRT and LCD digital projectors come underneath the type of transitive projectors.
Reflective projectors would be the superior digital projectors which provide top quality images. These are typically affordable and provide next level of entertainment. Anyone can enjoy home theater applications through the help of digital projectors.
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